Lead removal from water using carboxycellulose nanofibers prepared by nitro-oxidation method

  title={Lead removal from water using carboxycellulose nanofibers prepared by nitro-oxidation method},
  author={Priyanka R. Sharma and Aurnov Chattopadhyay and Chengbo Zhan and Sunil Kumar Sharma and Lihong Geng and Benjamin S. Hsiao},
Carboxycellulose nanofibers were extracted from untreated jute using a simple nitro-oxidation method based on nitric acid/sodium nitrite. The characteristics of nitro-oxidized carboxycellulose nanofibers (NOCNF) with low crystallinity (35%), high carboxylate content (1.15 mmol/g) and high surface charge (− 70 mV) made them an excellent substrate for Pb(II) ion removal from water. For example, a low concentration of NOCNF suspension (0.23 wt%) could remove a wide range of Pb(II) ions ranging… 

Sequential Oxidation on Wood and Its Application in Pb2+ Removal from Contaminated Water

Raw wood was subjected to sequential oxidation to produce 2,3,6-tricarboxycellulose (TCC) nanofibers with a high surficial charge of 1.14 mmol/g in the form of carboxylate groups. Three oxidation

Nitro-oxidized carboxycellulose nanofibers from moringa plant: effective bioadsorbent for mercury removal

Mercury contamination in drinking water is a worldwide problem due to its severely harming effects on the human body. A nanostructured natural bioadsorbent, carboxycellulose nanofiber extracted from

Reinforcement of Natural Rubber Latex Using Jute Carboxycellulose Nanofibers Extracted Using Nitro-Oxidation Method

Synthetic rubber produced from nonrenewable fossil fuel requires high energy costs and is dependent on the presumed unstable petroleum price. Natural rubber latex (NRL) is one of the major

Removal of lead ion from aqueous solutions by adsorption onto phosphate-functionalized treated waste papers (PF-TWPs)

Waste papers, although known as a potential global concern, could be used as an adsorbent for removal of lead ions from the aqueous medium, following some degrees of modifications. The present study

Effective Thallium(I) Removal by Nanocellulose Bioadsorbent Prepared by Nitro-Oxidation of Sorghum Stalks

Thallium(I) (Tl(I)) pollution has become a pressing environmental issue due to its harmful effect on human health and aquatic life. Effective technology to remove Tl(I) ions from drinking water can

Rice husk based nanocellulose scaffolds for highly efficient removal of heavy metal ions from contaminated water

Rice husks are an agricultural residue of great annual production and have a high cellulose content. In this study, we have prepared highly charged carboxyl cellulose nanofibers (CNFs) from rice

One-Step Fabrication of Novel Polyethersulfone-Based Composite Electrospun Nanofiber Membranes for Food Industry Wastewater Treatment

Using an environmentally friendly approach for eliminating methylene blue from an aqueous solution, the authors developed a unique electrospun nanofiber membrane made of a combination of

Adsorption Behavior of Chromium(VI) onto Regenerated Cellulose Membrane

Regenerated cellulose membrane (RCM) was successfully fabricated via the dissolution systems of 7 wt % NaOH/12 wt % urea. Extraction of cellulose sourced from recycled newspapers was done after

Efficient Removal of Arsenic Using Zinc Oxide Nanocrystal-Decorated Regenerated Microfibrillated Cellulose Scaffolds

Regenerated microfibrillated cellulose (R-MFC) fibers were prepared successfully by a combined dissolution and regeneration approach using phosphoric acid/ethanol treatment on jute cellulose. The

A study of TiO2 nanocrystal growth and environmental remediation capability of TiO2/CNC nanocomposites

Nanocellulose, which can be derived from any cellulosic biomass, has emerged as an appealing nanoscale scaffold to develop inorganic–organic nanocomposites for a wide range of applications. In this



A Simple Approach to Prepare Carboxycellulose Nanofibers from Untreated Biomass.

Nanofibers with low crystallinity were found to be effective for removal of heavy metal ions for drinking water purification and offered significant benefits in lowering the consumption of water and electric energy when compared with conventional multiple-step processes at bench scale.

Versatile Cellulose-Based Carbon Aerogel for the Removal of Both Cationic and Anionic Metal Contaminants from Water.

This cellulose-based carbogel shows an enhanced ability to remove both Cr(VI) and Pb(II) from the targeted solutions in comparison to other carbon materials reported in the literature.

Ultrafine Cellulose Nanofibers as Efficient Adsorbents for Removal of UO22+ in Water.

Ultrafine cellulose nanofibers, 5-10 nm in diameter, were prepared from oxidation of wood pulp using the (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO)/NaBr/NaClO process followed by mechanical

Nanocellulose fibers for biosorption of cadmium, nickel, and lead ions from aqueous solution

Nanocellulose fibers were prepared using physico-chemical treatment of rice straw, characterized and explored for the remediation of some toxic metals from wastewater. Nanocellulose fibers were found

Adsorption of lead ions from aqueous solution by using carboxymethyl cellulose-g-poly (acrylic acid)/attapulgite hydrogel composites

A series of carboxymethyl cellulose-g-poly (acrylic acid)/attapulgite (CMC-g-PAA/APT) hydrogel composites was prepared and used for Pb(II) adsorption from aqueous solution. The effects of APT

Fabrication of polymer-supported nanosized hydrous manganese dioxide (HMO) for enhanced lead removal from waters.

Adsorption of lead and cadmium ions in aqueous solutions onto modified lignin from alkali glycerol delignication.

Adsorption of Lead(II) and Cadmium(II) Ions from Aqueous Solutions by Adsorption on Activated Carbon Prepared from Cashew Nut Shells

Cashew nut shells were converted into activated carbon powders using KOH activation plus CO2 gasification at 1027 K. The increase both of impregnation ratio and activation time, there was swiftly the

Thiol-modified cellulose nanofibrous composite membranes for chromium (VI) and lead (II) adsorption