Article(id=1320090289721688602, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1320090269345755891, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20240497, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1722355200000, receivedDateStr=2024-07-31, revisedDate=1724774400000, revisedDateStr=2024-08-28, acceptedDate=null, acceptedDateStr=null, onlineDate=1792663651160, onlineDateStr=2026-10-22, pubDate=1737302400000, pubDateStr=2025-01-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792663651160, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792663651160, creator=13701087609, updateTime=1792663651160, updator=13701087609, issue=Issue{id=1320090269345755891, tenantId=1146029695717560320, journalId=1263187385517883426, year='2025', volume='53', issue='1', pageStart='1', pageEnd='240', issueExtLink='null', onlineDate='null', pubDate='1737302400000', pubDateStr='2025-01-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792663646303, creator='13701087609', updateTime=1792663867433, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320091196899307738, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1320090269345755891, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320091196899307739, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1320090269345755891, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=95, endPage=101, ext={EN=ArticleExt(id=1320090289994318363, articleId=1320090289721688602, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Photoelectric Performance of Amorphous Titanium Dioxide Modified Titanium Dioxide Photonic Crystal Electrode, columnId=1319726165087077079, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Article, runingTitle=null, highlight=null, articleAbstract=
Introduction

Titanium dioxide (TiO2) is used as a photoelectric conversion material due to its non-toxicity, good photothermal stability and low cost. However, TiO2 has a wide electron bandgap, and its photo-generated electrons and holes are easy to recombine. The photoelectric performance of TiO2 is often improved via increasing the specific surface area, speeding up the axial transport of electrons. In this paper, titanium dioxide inverse opal photonic crystals (TiO2 IOPCs) were selected as photoelectric conversion materials due to the advantages of large specific surface area and promoted light absorption. TiO2 IOPCs were prepared by a template method and a sol-gel method. Also, TiO2 IOPCs was modified with amorphous titanium dioxide (A-TiO2).

Methods

Self-assembled opal photonic crystals on fluorine-doped tin oxide (FTO) were used as templates. The precursor liquid prepared with isopropyl titanate, ethanol, acetyl acetone, hydrochloric acid and deionized water was filled into the gap of opal photonic crystal. After the sol in the opal crystal gap was dried and gelled, the electrode was calcined at 450 ℃ to remove the opal photonic crystals template to obtain TiO2 IOPCs. Afterwards, amorphous titanium dioxide modified titanium dioxide inverse opal photonic crystals (A-TiO2/TiO2 IOPCs) were prepared via placing TiO2 IOPCs electrodes into TiCl4 aqueous solution at a low temperature without stirring.

The phase composition, elemental composition, energy level structure and morphology of the electrode were analyzed by X-ray diffraction (XRD), X-ray electron spectroscopy (XPS), ultraviolet visible spectrophotometry (UV-VIS) and scanning electron microscopy (SEM). A three-electrode system was used to detect the photocurrent in the dark, and the LED with 390-410 nm was used as an excitation light source. The current-time (I-T) curve was recorded when the light source was switched.

Results and Discussion

The XRD patterns show that amorphous titanium dioxide modified anatase titanium dioxide electrode can be obtained. Based on the XPS analysis, the prepared material is TiO2. The valence band value of the electrode is determined by the XPS valence band spectra. The indirect band gap of the electrode material is determined according to the UV-VIS analysis. The conduction band value of the electrode can be obtained by calculation. The SEM images indicate that A layer of amorphous titanium dioxide is deposited on the orderly arranged porous skeleton of TiO2 IOPCs, which retains a porous structure and further increases the specific surface area. In the photocurrent test, TiO2 IOPCs photocurrent reaches 100 nA, and the photocurrent of A-TiO2/TiO2 IOPCs reaches 600 nA, indicating that its photocurrent is increased by 6 times. The conduction band value of A-TiO2 is more negative than that of anatase TiO2 IOPCs. The photogenerated electrons of A-TiO2 can be transferred to the conduction band of anatase TiO2 IOPCs. The valence band value of anatase TiO2 IOPCs is more positive than that of A-TiO2, and the photogenerated holes can be transferred from the anatase TiO2 IOPCs valence band to A-TiO2 valence band, thereby reducing the recombination of photogenerated electrons and holes. In addition, the light absorption area increases due to the porous structure of A-TiO2/TiO2 IOPCs, thus increasing the photocurrent.

Conclusions

TiO2 IOPCs were prepared by a template method and a sol-gel method, and then amorphous TiO2 was deposited on TiO2 IOPCs skeleton at a low temperature to prepare an amorphous titanium dioxide modified titanium dioxide inverse opal photonic crystal electrode. The porous structure of the electrode increased the light absorption area, and the modification of amorphous titanium dioxide reduced the recombination of photogenerated electrons and holes, and the photocurrent of the electrode was increased by 4 times. The results indicated that this method could be simple and feasible, which could obtain the superior photoelectric performance of the electrode, thus providing an effective approach for the development of green energy.

, authors=Jiajie JIANG1, Xinyuan XIE2, Fengyu LI2, authorsList=Jiajie JIANG, Xinyuan XIE, Fengyu LI, authorCompany=null, correspAuthors=Fengyu LI, authorNote=

JIANG Jiajie (1996-), female, Master candidate. E-mail:

, correspAuthorsNote=
LI Fengyu (1978-), mele, Ph.D., Professor. E-mail:
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随着太阳能广泛应用,寻找优良的光电转换材料一直为太阳能研究的重点。通过模板法和溶胶凝胶法在氟掺杂氧化锡上组装二氧化钛反蛋白石光子晶体,再在其晶体骨架低温沉积无定形二氧化钛形成无定型二氧化钛修饰的二氧化钛反蛋白石光子晶体电极。采用X射线衍射仪、X射线光电子能谱及扫描电子显微镜进行晶型、禁带及形貌表征;对电极进行光电流测试,并探讨了光电流增强原理。结果证明经过无定形二氧化钛修饰的二氧化钛反蛋白石光子晶体电极,不仅具有高比表面积,还降低了光生电子空穴的复合,使得电极光电流达到600 nA,比未修饰前提高了4倍。为基于非晶二氧化钛光电转换材料的应用提供了新思路。

, authors=蒋佳洁1, 谢新媛2, 李风煜2, authorsList=蒋佳洁, 谢新媛, 李风煜, authorCompany=null, correspAuthors=李风煜, authorNote=

蒋佳洁(1996—),女,硕士研究生。

, correspAuthorsNote=
李风煜(1978—),男,博士,教授。
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无定形二氧化钛修饰二氧化钛光子晶体电极及其光电性能
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蒋佳洁 1 , 谢新媛 2 , 李风煜 2
硅酸盐学报 | 研究论文 2025,53(1): 95-101
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硅酸盐学报 |研究论文 2025 , 53 (1) : 95 -101
无定形二氧化钛修饰二氧化钛光子晶体电极及其光电性能
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蒋佳洁1 , 谢新媛2, 李风煜2
作者信息
  • 1.广东省科学院工业分析检测中心,广州 510000
  • 2.暨南大学化学与材料学院,广州 510000
通讯作者:
李风煜(1978—),男,博士,教授。
作者简介:

蒋佳洁(1996—),女,硕士研究生。

Photoelectric Performance of Amorphous Titanium Dioxide Modified Titanium Dioxide Photonic Crystal Electrode
Jiajie JIANG1 , Xinyuan XIE2, Fengyu LI2
Affiliations
  • 1.Center for Industrial Analysis and Testing, Guangdong Academy of Sciences, Guangzhou 510000, China
  • 2.College of Chemistry and Material Science, Jinan University, Guangzhou 510000, China
  • Corresponding Author:
    LI Fengyu (1978-), mele, Ph.D., Professor. E-mail:

    JIANG Jiajie (1996-), female, Master candidate. E-mail:

出版时间: 2025-01-20 doi: 10.14062/j.issn.0454-5648.20240497
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随着太阳能广泛应用,寻找优良的光电转换材料一直为太阳能研究的重点。通过模板法和溶胶凝胶法在氟掺杂氧化锡上组装二氧化钛反蛋白石光子晶体,再在其晶体骨架低温沉积无定形二氧化钛形成无定型二氧化钛修饰的二氧化钛反蛋白石光子晶体电极。采用X射线衍射仪、X射线光电子能谱及扫描电子显微镜进行晶型、禁带及形貌表征;对电极进行光电流测试,并探讨了光电流增强原理。结果证明经过无定形二氧化钛修饰的二氧化钛反蛋白石光子晶体电极,不仅具有高比表面积,还降低了光生电子空穴的复合,使得电极光电流达到600 nA,比未修饰前提高了4倍。为基于非晶二氧化钛光电转换材料的应用提供了新思路。

光子晶体  /  二氧化钛  /  非晶  /  光电性能  /  反蛋白石
Introduction

Titanium dioxide (TiO2) is used as a photoelectric conversion material due to its non-toxicity, good photothermal stability and low cost. However, TiO2 has a wide electron bandgap, and its photo-generated electrons and holes are easy to recombine. The photoelectric performance of TiO2 is often improved via increasing the specific surface area, speeding up the axial transport of electrons. In this paper, titanium dioxide inverse opal photonic crystals (TiO2 IOPCs) were selected as photoelectric conversion materials due to the advantages of large specific surface area and promoted light absorption. TiO2 IOPCs were prepared by a template method and a sol-gel method. Also, TiO2 IOPCs was modified with amorphous titanium dioxide (A-TiO2).

Methods

Self-assembled opal photonic crystals on fluorine-doped tin oxide (FTO) were used as templates. The precursor liquid prepared with isopropyl titanate, ethanol, acetyl acetone, hydrochloric acid and deionized water was filled into the gap of opal photonic crystal. After the sol in the opal crystal gap was dried and gelled, the electrode was calcined at 450 ℃ to remove the opal photonic crystals template to obtain TiO2 IOPCs. Afterwards, amorphous titanium dioxide modified titanium dioxide inverse opal photonic crystals (A-TiO2/TiO2 IOPCs) were prepared via placing TiO2 IOPCs electrodes into TiCl4 aqueous solution at a low temperature without stirring.

The phase composition, elemental composition, energy level structure and morphology of the electrode were analyzed by X-ray diffraction (XRD), X-ray electron spectroscopy (XPS), ultraviolet visible spectrophotometry (UV-VIS) and scanning electron microscopy (SEM). A three-electrode system was used to detect the photocurrent in the dark, and the LED with 390-410 nm was used as an excitation light source. The current-time (I-T) curve was recorded when the light source was switched.

Results and Discussion

The XRD patterns show that amorphous titanium dioxide modified anatase titanium dioxide electrode can be obtained. Based on the XPS analysis, the prepared material is TiO2. The valence band value of the electrode is determined by the XPS valence band spectra. The indirect band gap of the electrode material is determined according to the UV-VIS analysis. The conduction band value of the electrode can be obtained by calculation. The SEM images indicate that A layer of amorphous titanium dioxide is deposited on the orderly arranged porous skeleton of TiO2 IOPCs, which retains a porous structure and further increases the specific surface area. In the photocurrent test, TiO2 IOPCs photocurrent reaches 100 nA, and the photocurrent of A-TiO2/TiO2 IOPCs reaches 600 nA, indicating that its photocurrent is increased by 6 times. The conduction band value of A-TiO2 is more negative than that of anatase TiO2 IOPCs. The photogenerated electrons of A-TiO2 can be transferred to the conduction band of anatase TiO2 IOPCs. The valence band value of anatase TiO2 IOPCs is more positive than that of A-TiO2, and the photogenerated holes can be transferred from the anatase TiO2 IOPCs valence band to A-TiO2 valence band, thereby reducing the recombination of photogenerated electrons and holes. In addition, the light absorption area increases due to the porous structure of A-TiO2/TiO2 IOPCs, thus increasing the photocurrent.

Conclusions

TiO2 IOPCs were prepared by a template method and a sol-gel method, and then amorphous TiO2 was deposited on TiO2 IOPCs skeleton at a low temperature to prepare an amorphous titanium dioxide modified titanium dioxide inverse opal photonic crystal electrode. The porous structure of the electrode increased the light absorption area, and the modification of amorphous titanium dioxide reduced the recombination of photogenerated electrons and holes, and the photocurrent of the electrode was increased by 4 times. The results indicated that this method could be simple and feasible, which could obtain the superior photoelectric performance of the electrode, thus providing an effective approach for the development of green energy.

photonic crystals  /  titanium dioxide  /  amorphous  /  photoelectric performance  /  inverse opal
蒋佳洁, 谢新媛, 李风煜. 无定形二氧化钛修饰二氧化钛光子晶体电极及其光电性能. 硅酸盐学报, 2025 , 53 (1) : 95 -101 . DOI: 10.14062/j.issn.0454-5648.20240497
Jiajie JIANG, Xinyuan XIE, Fengyu LI. Photoelectric Performance of Amorphous Titanium Dioxide Modified Titanium Dioxide Photonic Crystal Electrode[J]. Journal of the Chinese Ceramic Society, 2025 , 53 (1) : 95 -101 . DOI: 10.14062/j.issn.0454-5648.20240497
  • 国家自然科学基金(22474049)
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doi: 10.14062/j.issn.0454-5648.20240497
  • 接收时间:2024-07-31
  • 首发时间:2026-10-22
  • 出版时间:2025-01-20
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  • 收稿日期:2024-07-31
  • 修回日期:2024-08-28
基金
国家自然科学基金(22474049)
作者信息
    1.广东省科学院工业分析检测中心,广州 510000
    2.暨南大学化学与材料学院,广州 510000

通讯作者:

李风煜(1978—),男,博士,教授。
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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