文献类型：期刊文献

英文题名：Phosphorus-doped inverse opal g-C3N4 for efficient and selective CO generation from photocatalytic reduction of CO2

作者：Huang, Xiaoyue[1,2];Gu, Wenyi[3];Hu, Songchang[1,2];Hu, Yan[3];Zhou, Liang[3];Lei, Juying[3,4];Wang, Lingzhi[1,2];Liu, Yongdi[3,4];Zhang, Jinlong[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Feringa Nobel Prize Scientist Joint Res Ctr, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Joint Int Res Lab Precis Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Sch Resources & Environm Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[4]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2020

卷号：10

期号：11

起止页码：3694

外文期刊名：CATALYSIS SCIENCE & TECHNOLOGY

收录：;EI(收录号：20202508840561);WOS:【SCI-EXPANDED(收录号:WOS:000540915300017)】；

基金：This work was supported by the National Natural Science Foundation of China (21972040, 21777044, 5171101651, 21811540394, and 21972040) and the Science and Technology Commission of Shanghai Municipality (17520711500). This project was supported by the Science and Technology Commission of Shanghai Municipality (2018SHZDZX03, 19ZR1472400, and 19230711300) and the Programme of Introducing Talents of Discipline to Universities (B16017).

语种：英文

外文关键词：Photocatalytic activity - Electronic properties - Phosphorus - Carbon nitride - Light absorption - Energy gap - Inverse problems

摘要：In this work, inverse opal (IO) structure construction and phosphorus doping were combined to modify carbon nitride (g-C3N4) for the photocatalytic reduction of CO2. The inverse opal structure was fabricated by a hard template method, and the phosphorus doping was introduced by heat treatment of the mixed inverse opal g-C3N4 and NaH2PO2. The inverse opal structure greatly improved the specific surface area and enhanced the light absorption of g-C3N4, and the phosphorus doping can significantly change the electronic properties and surface charges, narrow the band gap and suppress the recombination of photogenerated charge carriers. The obtained catalyst P-IO CN exhibited excellent photocatalytic activity for CO2 reduction. Experimental results reveal that the products of all samples were CO and CH4. CO was detected as the main product with selectivity reaching 91% and the CO evolution rate of P-IO CN reached 31.22 mu mol g(-1) h(-1), which is about 3.3 and 6 times higher than that of IO CN and bulk CN, respectively. Our work provides new insight into the enhanced photocatalytic reduction of CO2 with metal-free materials in the era of energy shortage.