Results 21 to 30 of about 333,598 (164)
ABSTRACT Single‐atom catalysts are attractive for CO2 photoreduction due to their maximized atomic utilization and tunable electronic structures. In this study, indium (In) single atoms were incorporated into graphitic carbon nitride (CN) through an impregnation‐assisted thermal polycondensation strategy.
Xueying Guo +6 more
wiley +1 more source
ABSTRACT The stability of aqueous Zn2+ batteries is severely hindered by parasitic reactions at the Zn anode/electrolyte interface. Herein, itaconic acid (IA) is introduced as an effective electrolyte additive to achieve a highly stable zinc anode. Remarkably, IA concurrently modulates both the zinc anode/electrolyte interfacial structure and the Zn2 ...
Chenggang Wang +5 more
wiley +1 more source
采用树脂吸附法治理2-羟基-3-萘酸(2,3酸)废水。研究了不同树脂吸附剂、脱附溶剂以及吸附倍数、停留时间对处理效果的影响。试验结果表明:用DF-211树脂吸附剂在pH为2,流速为4~8BV/h条件下,吸附倍数达到80~120BV,用溶剂E脱附后,树脂可反复使用。
王璐璐
doaj
ABSTRACT Thermally driven hydrogenation of CO2 to light olefins (C2=–C4=) using metal oxide‐zeolite tandem catalysts is an effective strategy for achieving carbon neutrality. However, progress in this area is constrained by zeolite pore transport limitations, acid‐site inactivation, and surface carbon poisoning.
Haifeng Tian +10 more
wiley +1 more source
ABSTRACT Metal oxide‐based catalysts for oxygen reduction reaction (ORR) have drawn great attention in recent years. However, it remains technically challenging for the precise regulation of the overall performance due to the trade‐off effect among the activity, selectivity, and stability of electrocatalysts. Herein, a balancing strategy to control the
Haoran Ma +7 more
wiley +1 more source
用阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)改性天然膨润土,得到有机改性的膨润土.有机改性膨润土是一种粒径很细的粉末,由于产生难于分离的活性淤泥,很难应用于含酚废水的工业化处理.为了获得能够应用于固定床吸附的膨润土吸附剂,将粉末状有机改性膨润土加入渗透膜聚合物溶液中,渗透膜聚合物在有机改性膨润土表面形成一种能够让苯酚分子通过的渗透膜,得到新型球状膨润土颗粒吸附剂.研究了新型吸附剂吸附苯酚的动力学行为,结果表明其吸附动力学行为符合准二级动力学速率方程.采用间歇吸附实验获得了新型吸附剂吸附苯酚的等温线.
崔晓静, 江成发
doaj
A Review on Cu‐Based Catalysts for Dehydrogenation of Chemical Hydrides
ABSTRACT Hydrogen (H2) plays a crucial part in the building of clean and sustainable energy systems due to its advantages of being renewable, clean, and pollution‐free. Nevertheless, the secure and effective production‐storage‐transportation of H2 presents critical challenges.
Yixing Luo +6 more
wiley +1 more source
甘氨酸修饰大孔纤维素微球的制备及其对Cr3+、Fe3+的吸附研究
以碳酸钙固体颗粒为致孔剂,采用热熔胶转化再生纤维素法制备了大孔纤维素微球,并用甘氨酸修饰成阳离子吸附剂,以Cr3+、Fe3+为模型组分考察了该新型吸附剂的吸附性能。采用扫描电子显微镜对吸附剂的结构性能进行了表征,并探讨了吸附时间、初始浓度、温度、pH 对吸附性能的影响。结果表明,吸附在270 min 达到平衡,对Cr3+、Fe3+的饱和吸附量分别为52.5、48.9 mg/g,吸附过程可用Freundlich 等温方程拟合。
李江 +4 more
doaj
近年来随着农业和工业领域的高速发展,纺织、化学制造、农副产品加工、医疗等行业产生大量废水。这些废水中含有染料、重金属、持久性有机污染物、药物及个人护理品等多种污染物,排入水环境后造成自然水体的严重污染。生物吸附法具有高吸附量、低成本、环境友好等特点,常用于废水中各类污染物的吸附去除。然而,生物吸附法在净化废水过程中普遍存在吸附剂回收难、回收不彻底的难题,导致水环境发生再次污染。磁化改性技术可使磁性吸附剂与水溶液实现快速分离,解决生物吸附剂吸附后回收困难的问题。综述了磁性天然生物材料 ...
何佩霖, 高雅, 刘新
doaj
ABSTRACT Formic acid (FA) is considered to be a safe and convenient hydrogen source; however, achieving controlled and efficient FA dehydrogenation under mild conditions using stable solid catalysts remains a significant challenge. Pd‐based catalysts have been extensively studied due to their superior catalytic activity to other metal catalysts.
Shuai Wei +10 more
wiley +1 more source

