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biocompatibility, and excellent optoelectronic properties such as convenient emission tunability, high stability, and color purity. Among them, cadmiumbased (Cd-based) [1,2] and lead-based (Pb-based) [5,11] QDs have been studied a lot and much progress has been obtained over the past few decades. However, their toxicity limits further application in many fields. Indium phosphide (InP) QDs with wide emission range and no toxicity are promising alternative emitting material, rapidly acquiring extensive research, but it is still a great challenge to obtain highquality InP QDs. [15][16][17][18] To date, considerable research has focused on growth kinetics and synthetic strategies of InP QDs. [19][20][21][22][23][24][25] Apart from the common method where indium acetate and tris(trimethylsilyl)phosphine ((TMS) 3 P) are utilized, indium halide is widely employed in the preparation of InP/ ZnS QDs combining with zinc halide and amino phosphine recently owing to its low cost and safety. As has been reported, halide plays a critical role in its nucleation and surface chemistry. Hens et al. [26] reported the synthesis of InP/ZnS QDs with green and red emission tuning by halogen ions owing to their different steric hindrance effects. Considering the slow surface reaction rates of iodideThe ORCID identification number(s) for the author(s) of this article can be found under

He received his Bachelor's degree in School of Materials Science and Engineering at Nanchang University, China, in 2020. His current research interests focus on metal halide perovskite luminescent material and their applications.

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Sulfamethoxazole (SMX) is a broad-spectrum antibiotic and was largely used in breeding industry. The reaction rate of SMX with KMnO4 is slow, and the adsorption efficiency of biochar for SMX was inferior (less than 11% in 30 min). By adding biochar powder into SMX solution with the addition of permanganate, the oxidation ratio of SMX surged to 97% in 30 min, and over 58% of the total organic carbon (TOC) was simultaneously removed. KMnO4 interacted with biochar and resulted in the formation of highly oxidative intermediate manganese species, which transformed SMX into hydrolysis products, oxygen-transfer products, and self-coupling products. Brunauer–Emmett–Teller (BET) analysis showed that surface area, total pore volume, and micropore volume of biochar increased by 32.1%, 36.4%, and 80.6%, respectively, after reaction process. This in situ activation of biochar with KMnO4 enhanced its adsorption capacity and led to great improvement of TOC removal. Besides KMnO4 oxidation, biochar also enhanced TOC removal in Mn­(III) oxidation (KMnO4+ bisulfite) and ozonization of SMX. Considering that KMnO4 could react with biochar and result in the formation of intermediate manganese species, while biochar can be simultaneously activated and exhibit high capacity for organic adsorption, the combination of biochar with the chemical/advanced oxidation could be a promising process for the removal of environmental pollutants.

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Cesium lead halide perovskite nanocrystals (NCs) have compelling photoelectric properties while their poor stability severely impedes their practical applications. Herein, we demonstrate novel CsPbBr3-CsPbBr3 homostructured NCs induced by thioacetamide-Oleyamine (TAA-OAm)...

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