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Supplementing multi-functional groups to polysulfone membranes using Azadirachta indica leaves powder for effective and highly selective acid recovery
- Source :
- Journal of Hazardous Materials. 369:1-8
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Moderate and eco-pleasing ion-exchange trade membranes are in need to recover acid from industrial waste. Present study is focused on incorporation of plant waste (Azadirachta indica, neem leaves powder (NP)) of different composition as filler to polysulfone (PSf) membrane matrix to achieve acid recovery. Membranes were characterized, their chemical, mechanical and thermal stabilities and effectiveness in acid recovery via diffusion has been inspected. Multi-functional groups (−COOH, -NH2, −OH, -OAc, -C = O) present in different components of NP contributes in their own means in H+ ion transportation through membrane in acid recovery. They assisted formation of hydrogen bond and provided channels for ion permeation, and facilitated selective transportation of H+ ion over Fe2+ ions and explained mechanism is in accordance with Grotthuss-type and vehicle mechanism. Membrane with 15% of NP showed better performance in terms of ion exchange capacity (IEC) and acid recovery, at optimum concentration of NP, composite the membrane showed highest IEC values of 3.9771 mmol/g, UH+ value of ≈46.499 × 10−3 m/h and greater separation factor ≈154, which is higher than commercially available DF-120 membrane. An original thought of utilizing NP in membrane matrix opens up promising opportunities for extremely straightforward, easy, cost-effective and greener methods of recovery acid.
- Subjects :
- Environmental Engineering
Polymers
Health, Toxicology and Mutagenesis
Diffusion
0211 other engineering and technologies
02 engineering and technology
010501 environmental sciences
01 natural sciences
Industrial waste
Ion
chemistry.chemical_compound
Cation-exchange capacity
Environmental Chemistry
Recycling
Ferrous Compounds
Sulfones
Polysulfone
Waste Management and Disposal
0105 earth and related environmental sciences
021110 strategic, defence & security studies
Azadirachta
biology
Hydrogen bond
Chemistry
Membranes, Artificial
biology.organism_classification
Pollution
Plant Leaves
Membrane
Hydrochloric Acid
Plant Preparations
Powders
Water Pollutants, Chemical
Nuclear chemistry
Subjects
Details
- ISSN :
- 03043894
- Volume :
- 369
- Database :
- OpenAIRE
- Journal :
- Journal of Hazardous Materials
- Accession number :
- edsair.doi.dedup.....754ed426ce0360ae58faba0a31abf448