Decontamination of Anthraquinone Dyes Polluted Water Using Bioinspired Silica as a Sustainable Sorbent

Patel, Hinesh; Routoula, Eleni; Patwardhan, Siddharth V.

doi:10.1007/s12633-020-00851-1

Cited by 7 publications

(5 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This valuable knowledge is made possible by the transparency of the DOZN 2.0 algorithm, which is unique in allowing the user to easily understand how every stage of a chemical process affects the sustainability metrics. high value: catalysis, 47 adsorption, delivery of particularly insoluble drugs 48−50 soft-templated (pluronic) sol−gel 51 hexagonal mesoporous silica (HMS) high value: drug delivery, 52 adsorption, 45 catalysis 7,53 soft-templated (amine) sol−gel 54 mesoporous COK12 high value: catalysis, 55 potential for drug delivery and adsorption 56 soft-templated sol−gel 57 bioinspired silica high value: catalysis, 58 adsorption, 59 and drug delivery 27 amine-assisted sol−gel 60…”

Section: ■ Methodsmentioning

confidence: 99%

A Comparison of Environmental Impact of Various Silicas Using a Green Chemistry Evaluator

Brambila

Boyd

Keegan

et al. 2022

ACS Sustainable Chem. Eng.

Self Cite

View full text Add to dashboard Cite

To answer questions surrounding the sustainability of silica production, MilliporeSigma’s DOZN 2.0 Green Chemistry Evaluator was employed as it provides quantitative values based on the 12 principles of Green Chemistry. As a first study using DOZN 2.0 to evaluate the greenness of nanomaterials, a range of silica types were considered and their greenness scores compared. These included low- and high-value silicas, both commercial and emerging, such as precipitated, gel, fumed, colloidal, mesoporous, and bioinspired silicas. When surveying these different types of silicas, it became clear that while low value silicas have excellent greenness scores, high-value silicas perform poorly on this scale. This highlighted the tension between high-value silicas that are desired for emerging markets and the sustainability of their synthesis. The calculations were able to quantify the issues pertaining to the energy-intensive reactions and subsequent removal of soft templates for the sol–gel processes. The importance of avoiding problematic solvents during processes and particularly releasing them as waste was identified. The calculations were also able to compare the amount of waste generated as well as their hazardous nature. The effects of synthesis conditions on greenness scores were also investigated in order to better understand the relationship between the production process and their sustainability.

show abstract

Section: ■ Methodsmentioning

confidence: 99%

A Comparison of Environmental Impact of Various Silicas Using a Green Chemistry Evaluator

Brambila

Boyd

Keegan

et al. 2022

ACS Sustainable Chem. Eng.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Importantly, they also offer enhanced access and enhanced performance, offering entry to and opening up of new markets. Examples include environmental decontamination, i.e., pollutant removal from water and air. − Ordered mesoporous silica is a specialist subset of SGS with applications, for example, in drug delivery. Established laboratory and low-volume benchmarks currently face commercialization barriers due to cost, scalability, and environmental impact.…”

Section: Application Fitmentioning

confidence: 99%

Section: Application Fitmentioning

confidence: 99%

Recent Advances in Enabling Green Manufacture of Functional Nanomaterials: A Case Study of Bioinspired Silica

Pilling

Patwardhan

2022

ACS Sustainable Chem. Eng.

Self Cite

View full text Add to dashboard Cite

Global specialty silica production is over 3 million tonnes per annum with diverse applications across sectors and an increasing demand for more complex material structures and surface chemistries. Commercial manufacturing of high-value silica nanomaterials is energy and resource intensive. In order to meet market needs and mitigate environmental impacts, new synthesis methods for these porous materials are required. The development of the bioinspired silica (BIS) product system, which is the focus of this review, provides a potential solution to this challenge. BIS is a versatile and greener route with the prospect of good scalability, attractive process economics and well controlled product materials. The potential of the system lies not only in its provision of specific lead materials but also, as itself, a rich design-space for the flexible and potentially predictive design of diverse sustainable silica nanomaterials. Realizing the potential of this design space, requires an integrative mind-set, which enables parallel and responsive progression of multiple and dependent research strands, according to need, opportunities, and emergent knowledge. Specifically, this requires development of detailed understanding of (i) the pathways and extent of material diversity and control, (ii) the influences and mechanisms of scale-up, and (iii) performance, economic and environmental characteristics and sensitivities. Crucially, these need to be developed for the system overall, which sits in contrast to a more traditional research approach, which focuses initially on the discovery of specific material leads at the laboratory scale, leaving scale-up, commercialization, and, potentially, pathway understanding to be considered as distinctly separate concerns. The intention of this review is to present important recent advances made in the field of BIS. Specifically, advances made along three research themes will be discussed: (a) particle formation pathways, (b) product design, and (c) scale-up and manufacture. These advances include first quantitative investigation of synthesis-product relationships, first structured investigation of mixing effects, preparation of a broad range of functionalized and encapsulated silica materials and continued industrial engagement and market research. We identify future challenges and provide an important foundation for the development of new research avenues. These include the need to develop comprehensive and predictive product design models, to understand markets in terms of product cost, performance and environmental considerations, and to develop capabilities enabling rapid prototyping and scale-up of desired nanomaterials.

show abstract

“…Dyes are one of the largest water pollutants worldwide [1]. On a large scale, dyes enter water and wastewater either directly from the dye manufacturing industry or from the finishing steps in coloring other industrial products such as textiles, cosmetics, leather, food, and paper [2].…”

Section: Introductionmentioning

confidence: 99%

Efficient Removal of Basic Fuchsin from Synthetic Medical Wastewater and Competitive Adsorption in the Mixture

Ahmed

Salihi

Kaufhold

et al. 2023

Adsorption Science & Technology

View full text Add to dashboard Cite

The Ziehl-Neelsen stain is a mixture of Basic Fuchsin (BF), phenol (Ph), and methylene blue. It is used to stain the cell walls of Mycobacterium species. In this study, Basic Fuchsin was efficiently removed from synthetic wastewater using natural clay of Gankawa (GC) from Sulaimanyah city, and the effect of the presence of high concentrations of phenol in the adsorption mixture is demonstrated. In addition, X-ray diffraction (XRD), X-ray fluorescence (XRF), N2 gas adsorption analyzer, and field-emission scanning electron microscopy (FESEM) were used to characterize the natural clay. The clay was found to be mostly calcite, with a minor percentage of smectite, and contaminated with low percentages of illite. The adsorption kinetics show a relatively fast equilibration time (60-70 minutes). A second-order pseudokinetic model better fits the experimental kinetic data. The effect of the initial pH of the solution mixture was negligible at the experimental concentration range of the study. Freundlich and Langmuir’s adsorption isotherm models were applied to the equilibrium experimental data using nonlinear regression curve fitting. Both kinetics and isotherm studies point to a chemical adsorption mechanism for the process. For adsorption in the mixture, phenol molecules were found to compete with BF molecules for the active adsorption sites, while a synergetic effect of BF exists on phenol adsorption. As a naturally abundant cheap material, GC shows a superior adsorption capacity toward BF (287.0 mg g-1) over all natural materials and most of the synthetic or modified materials found in the literature.

show abstract

Decontamination of Anthraquinone Dyes Polluted Water Using Bioinspired Silica as a Sustainable Sorbent

Cited by 7 publications

References 43 publications

A Comparison of Environmental Impact of Various Silicas Using a Green Chemistry Evaluator

A Comparison of Environmental Impact of Various Silicas Using a Green Chemistry Evaluator

Recent Advances in Enabling Green Manufacture of Functional Nanomaterials: A Case Study of Bioinspired Silica

Efficient Removal of Basic Fuchsin from Synthetic Medical Wastewater and Competitive Adsorption in the Mixture

Contact Info

Product

Resources

About