孔雀绿
刚果红
材料科学
罗丹明B
纳米复合材料
催化作用
胶体金
傅里叶变换红外光谱
酞菁
核化学
甲基红
纳米颗粒
无机化学
吸附
化学工程
有机化学
光催化
纳米技术
化学
工程类
作者
Vairaperumal Tharmaraj,S. Anbu Anjugam Vandarkuzhali,G. Karthikeyan,Muthusamy Poomalai Pachamuthu
标识
DOI:10.1016/j.surfin.2022.102052
摘要
Industrial dye effluents and organic pollutants pose serious environmental threats for which efficient catalytic adsorbents have been indispensable in treating them. In the present work, the synthesis of gold nanoparticles (AuNPs) dispersed over aminopropyl-functionalized magnesium phyllosilicate (AMP) composites (AuNPs/AMP NC) is reported, involving the organic-inorganic hybrid structure with the strategy of AuNP formation over AMP clay. The AuNPs decorated AMP hybrid nanocomposite was characterised by XRD, FTIR, TGA, UV-Visible, SEM-EDAX, and TEM techniques. The presence of a surface plasmon resonance (SPR) absorption band at 520 nm in UV-Visible spectra revealed the formation of AuNPs over AMP support, which was supported by XRD results. The average particle size of AuNPs with spherical morphology was in the range of 3 nm, respectively. The catalytic performance of the AuNPs/AMP NC was studied through the reduction of malachite green (MG), phenol red (PR), rhodamine B (RhB), rhodamine 6 G (Rh6G), and Congo red (CR) in the presence of NaBH4, respectively. The progress of reductive dye degradation was monitored via UV–Vis spectrophotometry. The kinetic data was analysed and apparent rate constants were determined for the respective dyes. The reduction efficiency of the nanocatalyst over MG, PR, RhB, Rh6G, and CR, in the presence of NaBH4 was determined as > 98%, respectively. Such prolific nanocomposite catalysts could be employed as an alternative to toxic dye and organic component degradation in environmental treatment.
科研通智能强力驱动
Strongly Powered by AbleSci AI