期刊论文、会议论文

Direct electrospinning method for the construction of Z-scheme TiO_2/g-C_3N_4/RGO ternary heterojunction photocatalysts with remarkably ameliorated photocatalytic performance

Yan, Juntao;Li, Jianfen

英文

催化学报

0253-9837

2019

40

3

458-469

Chinese Symposium on Photocatalytic Materials (CSPM)

JUL 26-29, 2018

Wuhan Univ Technol, Wuhan, PEOPLES R CHINA

Wuhan Univ Technol

Fuzhou Univ, Xuchang Univ

16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA

SCIENCE PRESS

10.1016/S1872-2067(18)63181-X

* Corresponding author. Tel/Fax: ꨃ? ?-球?-稃甃笃瘃? 笃眃码ntao ?E-m爃a爃il: 甃yan㜃ju猃球? .com ?Corresponding author. Tel/Fax: ꨃ? ?-球?-稃甃笃瘃? 笃眃码 E-mail: lijfen 㜃? 砃甁com This work was supported by the Scientific Research Project from Hubei Provincial Department of Education (Q 球爃猃稃? 稃爃?),R aensdea trhceh and ?nnovation ?nitiatives of Wuhan Polytechnic University ( 球爃猃稀瘁J? 球? 猃稀Y 爃礂ఁ DO?: 猃?.猃爃猃?/S 猃?礃琁球爃|? ht礂tp:H// 猃w稂wwః.s?cie甃nc猃ed?ire猁ct.coᬀm/ science/journal/ 猃稃礃球球爃砃?J. C| aCthali.n, .Vol. 瘃爁 NMo.a 甁rch 球 爃猃?

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A series of Z-scheme TiO2/g-C3N4/RGO ternary heterojunction photocatalysts are successfully constructed via a direct electrospinning technique coupled with an annealing process for the first time. They are investigated comprehensively in terms of crystal structure, morphology, composition, specific surface area, photoelectrochemical properties, photodegradation performance, etc. Compared with binary TiO2/g-C3N4 and single-component photocatalysts, ternary heterojunction photocatalysts show the best photodegradation performance for RhB under sti...

太阳能光催化技术广泛应用于处理环境污水中. Z型光催化剂体系具有较强的氧化还原能力,降低半导体的带隙,且使导带更负,价带更正,有效拓宽光生电子-空穴空间距离,抑制其复合,大大提高了光催化剂的催化性能,因此,构筑直接的Z型光催化体系已成为光催化领域的研究热点之一. TiO_2具有较好的光催化性能和良好的化学稳定性,但其禁带较宽,只能被太阳光中约占4%的紫外光激发,对太阳光中约占50%的可见光不响应,且光生电子-空穴易复合. g-C_3N_4是非金属光催化剂,具有较好的光催化活性,可见光吸收非常强,但比表面积较小,光生电子-空穴易复合.还原氧化石墨烯(RGO)具有大的比表面积和优异的传输载流子能力,...