Water purification by functionalised self-assembled monolayers on silica particles

Majewski, Peter; Chan, Chiu

doi:10.1504/ijnt.2008.016919

Cited by 12 publications

(5 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Surface-engineered silica materials (SESMs) possessing surface activity successfully removed organic pollutants and bacteria from water [23][24][25][26]. They have greater tendency to deposit on metal and metal oxide surfaces for removal from water.…”

Section: Resultsmentioning

confidence: 99%

“…In this respect, titanium dioxide nanoparticles possess surfaces combined with the photo-adsorbed water layer, which is attributed to the "water wets water" mechanism, affected the application of TiO 2 film in a dark or non-UV environment [21,22]. Surface-engineered silica materials (SESMs) possessing surface activity successfully removed organic pollutants and bacteria from water [23][24][25][26]. They have greater tendency to deposit on metal and metal oxide surfaces for removal from water.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Application of Super-Amphiphilic Silica-Nanogel Composites for Fast Removal of Water Pollutants

et al. 2016

View full text Add to dashboard Cite

This work first reports the preparation of super-amphiphilic silica-nanogel composites to reduce the contact angle of water to increase the diffusion of pollutant into adsorbents. In this respect, the silica nanoparticles were encapsulated into nanogels based on ionic and nonionic polyacrylamides by dispersion polymerization technique. The morphologies and the dispersion stability of nanogel composites were investigated to clarify the ability of silica-nanogel composites to adsorb at different interfaces. The feasibility of silica polyacrylamide nanogel composites to act as a high-performance adsorbent for removal of methylene blue (MB) dye and heavy metals (Co 2+ and Ni 2+ ) from aqueous solution was investigated. The surface tension, contact angle, average pore size, and zeta potential of the silica-nanogel composites have been evaluated. The MB dye and heavy metal adsorption capacity achieved Q max = 438-387 mg/g which is considerably high. The adsorption capacity results are explained from the changes in the morphology of the silica surfaces as recorded from scanning electron microscopy (SEM).

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of Super-Amphiphilic Silica-Nanogel Composites for Fast Removal of Water Pollutants

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Nanoporous zeolites, nanoporous polymers, and attapulgite clays have a binding capacity 100,000 times more than that of typical activated carbon (Singer et al, 2005). Pure silica particles coated with an active material are significantly more cost-effective at removing harmful compounds and microorganisms (Majewski & Chan, 2008). Conventional water treatment plants have been able to effectively remove biological pollutants with CNT-based technology, hence resolving the issue of maintaining the biostability of treated water in the distribution lines (Upadhyayula et al, 2009).…”

Section: Membranesmentioning

confidence: 99%

New technologies for drinking water

Nagar,

Islam,

Pradeep

2023

Technological Solutions for Water Sustainability: Challenges and Prospects

View full text Add to dashboard Cite

The global population is expected to be about 8.2 billion by 2025. This suggests a dire need to prepare for the ongoing and impending challenges linked with water stress to create a water-secure ecosystem. Densely populated countries such as India and China are enhancing the production of semiconductor, petrochemical, automotive, chemical, and pharmaceutical products, which are materially enriching. Simultaneously, our quickly diminishing resources are being further stressed by unprocessed industrial waste. Therefore, to build a sustainable and hygienic livelihood for all, it is imperative to be able to remove conventional and emerging pollutants from water in an affordable and energy-efficient manner. Nanotechnology-based solutions have made substantial contributions towards offering sustainable solutions in the clean water space. Although nanotechnology-based water purification has been an active research area for decades, it is yet to occupy a significant market share because of irregularities in the context of sensitivity, efficient operation in the field, and higher cost in comparison to traditional technologies. This chapter will highlight emerging technologies for drinking water which have also reached society in the form of easily operable devices, such as nanomaterial-incorporated handpumps, desalination devices, and atmospheric water generators.

show abstract

“…(35,36) Interdisciplinary scientists are now harnessing the properties of nanoscale materials to address global challenges. Nanotechnologies promise clean water for the developing world, (37) solutions to cancer and HIV/AIDS, and low-cost, sustainable energy production. (38) The nanosolar powersheet, made with "solar absorbing power-ink," was named the top innovation of the year in 2007 by Popular Science magazine.…”

Section: Exuberant Engineers (The Nanotechnologicalmentioning

confidence: 99%

Nanotechnology Risk Communication Past and Prologue

Bostrom

Löfstedt

2010

Risk Analysis

View full text Add to dashboard Cite

Nanotechnologies operate at atomic, molecular, and macromolecular scales, at scales where matter behaves differently than at larger scales and quantum effects can dominate. Nanotechnologies have captured the imagination of science fiction writers as science, engineering, and industry have leapt to the challenge of harnessing them. Applications are proliferating. In contrast, despite recent progress the regulatory landscape is not yet coherent, and public awareness of nanotechnology remains low. This has led risk researchers and critics of current nanotechnology risk communication efforts to call for proactive strategies that do more than address facts, that include and go beyond the public participation stipulated by some government acts. A redoubling of nanotechnology risk communication efforts could enable consumer choice and informed public discourse about regulation and public investments in science and safety.

show abstract

Water purification by functionalised self-assembled monolayers on silica particles

Cited by 12 publications

References 25 publications

Application of Super-Amphiphilic Silica-Nanogel Composites for Fast Removal of Water Pollutants

Application of Super-Amphiphilic Silica-Nanogel Composites for Fast Removal of Water Pollutants

New technologies for drinking water

Nanotechnology Risk Communication Past and Prologue

Contact Info

Product

Resources

About