Academic Journal
Catalytic Dechlorination of Three Organochlorides by Recyclable Nano-Palladium-Engineered Natural Sponge with Formic Acid
| العنوان: | Catalytic Dechlorination of Three Organochlorides by Recyclable Nano-Palladium-Engineered Natural Sponge with Formic Acid |
|---|---|
| المؤلفون: | Mingyue Liu, Gang Chen, Zhenjun Song, Zhicai He, Aiguo Zhong, Mei Cui |
| المصدر: | Catalysts, Vol 14, Iss 7, p 424 (2024) |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | dechlorination, formic acid, sponge, florfenicol, chlorophenol, Pd NPs, Chemical technology, TP1-1185, Chemistry, QD1-999 |
| الوصف: | Catalytic dechlorination of organic chlorides by palladium (Pd) with HCOOH represents one of the most effective and promising techniques for environmental remediation. In this study, we adopted alkaline-modified porous natural sponge as support of a Pd nanocatalyst (Pd@M-Sponge) and HCOOH as a hydrogen source for the hydrodechlorination of florfenicol (FF), o -chlorophenol ( o -CP), and p -chlorophenol ( p -CP). Favorable conversion efficiency of FF, o -CP, and p -CP was achieved at 25 °C and atmospheric pressure attributed to the small diameter and high catalytic reactivity of the prepared Pd NPs, in addition to the slight internal mass transfer limitation of the prepared Pd@M-Sponge. High reaction rate constants were obtained even in the conditions of a low molar ratio of HCOOH to p -CP (10:1) and a high concentration of p -CP (500 mg/L). The prepared catalyst also demonstrated superior recyclability without any obvious decrease in catalytic reactivity in 20 successive p -CP dechlorination cycles. This work provides an ideal recyclable and cost-effective catalyst based on renewable and biocompatible natural material for the catalytic hydrodechlorination of chlorinated organic pollutants with formic acid and a new view for the exploration and designing of highly reactive and stable catalysts for hydrodechlorination. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2073-4344 |
| Relation: | https://www.mdpi.com/2073-4344/14/7/424; https://doaj.org/toc/2073-4344; https://doaj.org/article/9c4e600622614bd6bc29a4c5c3097265 |
| DOI: | 10.3390/catal14070424 |
| الاتاحة: | https://doi.org/10.3390/catal14070424 https://doaj.org/article/9c4e600622614bd6bc29a4c5c3097265 |
| رقم الانضمام: | edsbas.FE05DA31 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 20734344 |
|---|---|
| DOI: | 10.3390/catal14070424 |