我组曹伟静在ACS Sustainable Chem. Eng.上发表论文

题目：

Extraction of High-Quality Quantum Dot Photocatalysts viaCombination of Size Selection and Electrochemiluminescence

作者：

Weijing Cao,^†,# Yunlong Qin,^§,# Hui Huang,^‡ Baodong Mao,^*,† Yanhong Liu,^*,†and Zhenhui Kang^*,‡

单位：

^†School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, P.R. China

^‡Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and

Devices, Soochow University, 199 Ren’ai Road, Suzhou 215123, P.R. China

^§Engineering Laboratory for Modern Analytical Techniques, c/o State Key Laboratory of Electro****ytical Chemistry, Changchun

Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China

摘要：

Quantum dots (QDs) represent one of the mostpromising photocatalytic systems for solar hydrogen production.Tremendous works have been devoted to the design of QDsphotocatalysts, but their further development is limited by the unwantedmix of high- and low-quality QDs with different activities. Withmultinary Ag-In-Zn-S (AIZS) QDs as an example, here, we present asimple method for the extraction and screening of efficient photocatalysts by combination of gradient centrifugation and electrochemiluminescence (ECL). With controllable introduction of poor

solvent, the crude QDs were separated into five individual samples by

gradient centrifugation, from which ECL tests were performed to get the

surface state information for photocatalyst screening. By the combination of size-selective centrifugation and ECL screening, wewere able to get the high-activity component (AIZS-#4), which achieved 1.68 mmol·g⁻¹ h⁻¹

, 6 times higher than that of theinitial AIZS QDs. This work provides an alternative useful pathway for obtaining high-quality QD photocatalysts, beyondpursuing of perfect synthetic conditions.

影响因子：

7.632

分区情况：

1区

链接：  

https://pubs.acs.org/doi/10.1021/acssuschemeng.9b05787