Among the thin film-photovoltaics, perovskite solar cells (PSCs) are one of most developing topics research in recent times. Research records reveal that around 26 % efficiency PSCs has already been achieved so far. However, commercialization those is hindered due to toxicity lead (Pb), and instability organic cations as well structural volatility. Several inorganic materials including hole transport layer (HTL) have recently proposed developed reduce part device structure. We fabricate MoO3...

Microbial fuel cell (MFC) has received much attention in the last decade as a promising technology to simultaneously generate electricity and decontaminate wastewater. This study aims quantitatively review published literature on MFC, period of 1970–2020, based Web Science (WoS) database. For first time literature, comprehensive quantitative MFC been conducted by employing technique bibliometric content analyses. A total 11,397 publications have retrieved from WoS, out which 81.6% are...

Rapid growth in various industrial fields has introduced a series of new environmental risks. The textile industry is one the major industries that influenced by rapid advancements technological sectors. development dying technologies presented types dyes are toxic to ecosystem. Azo main artificial used textiles, food, and other applications. Typically, these into environment as wastewater discharged from factories. influence penetrates ecosystem causes deadly diseases human animals. Several...

The strong electrostatic adsorption (SEA) method was applied to the synthesis of a cobalt (Co) catalyst on multi-walled carbon nanotube (CNT) support. In order uptake more cluster with higher dispersion, CNT functionalized via acid and thermal treatment. Co/CNT samples were characterized by range methods including Brunauer–Emmet–Teller (BET) surface area analyzer, transmission electron microscopy (TEM), X-ray powder diffraction (XRD) analysis, atomic absorption spectroscopy (AAS),...

Pre-treating the multi-walled carbon nanotubes (CNTs) support by refluxing in 35 vol% nitric acid followed heating at temperature of 600 to 900 °C resulted formation defects on CNTs. Increasing pre-treatment CNTs from °C, enhanced fraction cobalt-oxide nanoparticles encapsulated channels 31% 70%. The performance Co/CNTs Fischer-Tropsch synthesis (FTS) was evaluated a fixed-bed micro-reactor 240 and pressure 2.0 MPa. highest CO conversion obtained over Co/CNTs.A.900 59% it dropped ~3% after...

The CO2 emission, especially from the energy sector, has increased by 1.7% in recent years, which is an enormous increase. Therefore, various materials have been employed to capture released CO2. Although many studies also conducted review state-of-the-art of technology, a quantitative development this field still novelty. Keeping mind, present study aims quantitatively available literature on technology that published during period 1970–2020, applying bibliometric and content analysis...

This research deals with the effect of temperature on physical, thermal, electrochemical, and adsorption properties carbon micro-spheres using hydrothermal carbonization (HTC). Until recently, limited has been conducted regarding effects delignification during HTC process biomass residues especially Dimocarpus longan. In this regard, lignin was first extracted from lingo-cellulosic waste Longan fruit peel (Dimocarpus longan). The holocellulose (HC) separated raw substrates (Longan...

In this study, lead sulfide (PbS) nanoparticles were synthesized by the chemical precipitation method using Aloe Vera extract with PbCl2 and Thiourea (H2N-CS-NH2). The have been investigated x-ray diffraction (XRD), UV-Vis, energy-dispersive spectroscopy (EDX), scanning electron microscopy (SEM), transmission (TEM). XRD TEM results confirm that films are in cubic phase. crystallite size, lattice constant, micro-strain, dislocation density, optical bandgap, etc. determined UV-Vis for...

Abstract Over the last few decades, steady growth in desalination literature has been observed. However, conducting a quantitative analysis of this is still novelty. This study aimed at carrying out published during 30 years, using bibliometric and content techniques, based on Web Science database. The revealed that received much attention after year 2000, as 95.4% two decades 2000. text mining showed hot themes research are reverse osmosis optimization, graphene implications, interfacial...

Multiwalled carbon nanotubes (CNT) supported cobalt oxide was prepared as a catalyst by strong electrostatic adsorption (SEA) method. The CNT support initially acid- and thermal-treated in order to functionalize the uptake more Co clusters. Co/CNT were characterized range of analytical methods including transmission electron microscopy (TEM), temperature programmed reduction with hydrogen (H2-TPR), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy,...

Solid waste management needs re-evaluating in developing countries like Pakistan, which currently employs landfilling as a first option. Over time, increasing population will result decreasing space for landfill sites, ultimately the cost of landfilling, while accumulated cause pollution. Locating and preparing sanitary includes securing large sectors also everyday activity with end goal to limit potential negative impacts. Energy production from municipal solid (MSW) is perceptive idea...

This study focuses on the extraction of cellulose nano-whiskers (CNWs) from leaves Adansonia kilima (AK), usually known as African baobab, using a combination microwave-assisted alkali (KOH) pre-treatment with subsequent bleaching process prior to ultra-sonication. Ultra-sonication was carried out ionic liquid (IL) 1-butyl-3-methylimidazolium hydrogen sulfate (Bmim-HSO4). Process parameters for ultra-sonication were optimized two-level factorial Box–Behnken design (BBD). variables such power...

In this review, we summarize the latest advances in development of various flexible sensors structure platforms fabricated by inkjet printing technique. We first explain general type biosensors which includes tactile published recently that highlighted their features and uses, architecture or platform advantages designed platform. For better understanding process, include working system strategy ink jet process for quality effective design wearable applications. Then, reviewed types sensor...

Abstract In this study, we have extensively investigated an eco-friendly perovskite-based solar cell via a theoretical approach and numerical simulation. For that purpose, firstly, conducted brief literature review to decipher the status of Pb-free perovskite cells (PSCs). The reflects research on PSCs is going with immense interest. By acquiring inspiration from review, designed hybrid PSC structure FTO/CdS/FAMASnGeI 3 /NiO/Ag utilizing SCAPS-1D software. has been optimized by fine-tuning...

Herein, we report the effect of synthesis temperature on morphologies, optical and electronic properties magnesium oxide (MgO) nanostructures. The MgO nanostructures were synthesized at different temperatures, i.e., 100 °C, 300 600 °C by simple chemical reaction process their morphology, particle size, optical, electrical examined techniques such as scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy UV-Vis. spectroscopy. morphological...

Abstract The thermal treatment of the CdTe thin film in presence CdCl 2 is a crucial step creation high-efficiency CdTe-based solar cells. process influences grain growth, boundary passivation, and doping, including recrystallization, promotes to building photovoltaic junction. However, toxic Cd + ions released by , which highly soluble water major environmental concern this process. Also, price (about 30 cents/gram) that drives up manufacturing costs another limitation current processs....

Infections after bone reconstructive surgery become an authentic therapeutic and economic issue when it comes to a modern health care system. In general; infected defects are regarded as contraindications for grafting. Since the pathogens develop biofilm on inner surface of bone; local delivery antibiotics becomes more important. The present work focuses synthesis Mesoporous Hydroxyapatite (MPHAP) loaded with drug Vancomycin (Van) investigate its loading leaching ability in phosphate buffer...

The ecosystem of earth, the habitation 7.53 billion people and more than 8.7 million species, is being imbalanced by anthropogenic activities. ever-increasing human population race industrialization an exacerbated threat to ecosystem. At present, global average waste generation per person articulated as 494 kg/year, enormous amount household (HSW) that ultimately hits 3.71×1012 kg in one year. ultimate destination HSW a burning issue because open dumping main treatment final disposal systems...