Methyl Violet Dye Research Articles

Green-Fueled synthesis of rGO/CuO for catalytic degradation of methyl violet dye

This study presents the green synthesis of copper oxide (CuO) through an eco-friendly solution combustion method, utilizing lemongrass as a natural fuel source. The rGO/CuO composite was prepared via a simple reflux process, emphasizing environmental sustainability. Comprehensive characterization of the synthesized CuO and rGO/CuO composites was conducted using techniques such as XRD, SEM, FTIR, PL, HR-TEM, EDX, and UV–Vis's spectroscopy. The photocatalytic efficiency of the rGO/CuO composite was tested for the degradation of Methyl Violet (MV) dye, achieving an impressive degradation rate of 98.87 ​% and following first-order kinetic behavior. The half-life (t₁/₂) of the reaction was calculated to be 18.17 ​min, with a rate constant (k) of 0.0398 ​min⁻1. Various parameters affecting photocatalytic performance, including pH, dye concentration, light source, and catalyst dosage, were systematically investigated. Scavenger experiments were conducted to determine the active species involved in the degradation process, and total organic carbon (TOC) removal was measured to assess mineralization efficiency. The catalyst's reusability was also evaluated, confirming its potential for long-term use in sustainable environmental remediation applications.

Uncovering the synthesis of a visible light-driven manganese-doped copper bismuth oxide catalyst for enhanced degradation of dye: Insights into the factors affecting the degradation

In recent times, effluent pollution has had an exceptionally detrimental effect on aquatic life as well as human beings. The management of wastewater has emerged as a formidable undertaking for scientists owing to the existence of organic contaminants. Herein, we synthesized the manganese-doped copper bismuth oxide (Mn0.15Cu0.85Bi2O4) through hydrothermal method and employed them for successfully eliminating complex pollutants. The assessment of the visible light-induced photocatalytic efficacy of the catalyst was performed for the degradation of methyl violet (MV). MV had a degradation of 89.68% when CuBi2O4 was used. However, the degrading rate of the Mn0.15Cu0.85Bi2O4 escalated to 99.18% in 36 min. The rate constant exhibited a rise between 0.0627 and 0.1134 min−1, confirming the effectiveness of the Mn0.15Cu0.85Bi2O4. The effectiveness of the Mn0.15Cu0.85Bi2O4 is due to its superior surface area (51.97 m2/g), which arises from the integration of Mn-ions. Additionally, examining the impact of different reaction variables revealed a substantial correlation with the elimination of MV dye. The potential reason for the deterioration of MV could be attributed to the generation of •OH and O2•− radicals, which was confirmed by radical trapping experiments. The photostability of the generated Mn0.15Cu0.85Bi2O4 catalyst exhibited remarkable characteristics. Ultimately, this study presents a technique for creating effective catalysts for treating wastewater that is both economical and practical.

Enhanced Catalytic Activity for Production of Biodiesel from Aloe vera Oil and the Removal of Methyl Violet Dye using Polyaniline-Fe3O4 Magnetic Nanocomposite

The aim of this work was to use a unique technique to maximize the efficiency and cost-effectiveness of biodiesel synthesis utilizing Aloe vera oil. Moreover, in order to facilitate the magnetic separation from the resultant mixture, lipase was immobilized on a magnetic nanocomposite consisting of polyaniline (PANI) and Fe3O4. Utilizing XRD, SEM, TGA and FTIR spectroscopy, the nanocomposite was thoroughly characterized. The results indicated that the immobilized lipase exhibited enhanced thermal stability and a modified optimum pH compared to its free form. Using immobilized lipase also significantly improved the biodiesel conversion yield from 27% with free enzyme to 60%. Remarkably, after five cycles of reutilization in the production of biodiesel, the immobilized lipase retained 90% activity. The catalytic effectiveness of lipase during biodiesel synthesis was significantly enhanced and its resistance to heat and pH fluctuations was strengthened by this novel immobilization approach. Beyond its potential usage in biodiesel production, the PANI-Fe3O4 magnetic nanocomposite also demonstrated photocatalytic removal and degradation of methyl violet dye from aqueous solution.

Preparation and characterization of palm tree flower biomass-based biochar and its application for the effective removal of methyl violet dye

Preparation and characterization of palm tree flower biomass-based biochar and its application for the effective removal of methyl violet dye

Unveiling the synthesis of highly efficient cerium-doped zinc nanoferrites anchored over graphitic carbon nitride for enhanced photocatalytic water purification implications

Over the past several years, the manufacturing and dispersal of naturally occurring dyes from various paint and textile companies have placed aquatic environments at an elevated risk of devastation. To address this pollution of the environment, it is imperative to focus on removing these dyes in order to address environmental pollution. Herein, we used hydrothermal technique to synthesize cerium-doped zinc nanoferrites anchored over graphitic carbon nitride (Ce0.15Zn0.85Fe2O4/g-CN), a photocatalyst that is both extremely adaptable and exceedingly efficient. The association between the catalytic efficiency and the material properties of the manufactured catalysts was examined with a diverse array of methods of characterization. The photodegradation efficacy of the Ce0.15Zn0.85Fe2O4/g-CN photocatalyst was examined using the methyl violet (MV) dye. The Ce0.15Zn0.85Fe2O4/g-CN photocatalyst exhibited an exceptional photodegradation of 97.19 % under solar light in comparison to pure ZnFe2O4 (73.81 %) and Ce0.15Zn0.85Fe2O4 (84.52 %), respectively, under constant conditions of reaction. The Ce0.15Zn0.85Fe2O4/g-CN photocatalyst’s improvement in photodegradation of the MV dye was attributed to a rise in active sites and an elevation in surface area to 128.67 m2/g as a result of g-CN incorporation in the material and was much greater than ZnFe2O4 (76.87 m2/g) and Ce0.15Zn0.85Fe2O4 (92.08 m2/g). The reaction circumstances were also adjusted to ascertain the impact of multiple variables. Radical trapping agents’ studies were employed to validate reactive oxygen species. The Ce0.15Zn0.85Fe2O4/g-CN photostability and recycling were assessed by executing four consecutive investigations under predetermined conditions for the reaction. Eventually, this research will yield an environmentally benign and economically viable photocatalyst for efficiently degrading MV dye in water reservoirs.

Visible/solar light active transparent BiB3O6 glass- ceramics multi-catalysis

Borate based non-centrosymmertic crystals are known for their non-linear optical properties. This study reports BiB3O6 glass-ceramics for photocatalysis and piezocatalysis applications. These were fabricated via. melt-quench technique and yellow transparent glass samples were made. Effectiveness of a bismuth-triborate glass-ceramic (BiB3O6) in degrading methylene blue (MB) and methyl violet (MV) dye undergoing photocatalysis in the presence of visible light and solar light for MB dye was studied. Degradation observed in photocatalysis was ∼62 % and ∼50 % for MB and MV dye respectively in 240 min whereas, ∼72 % of MB dye was degraded under solar light. Piezocatalysis was examined to assess the extended potential of this material, resulting in approximately ∼76 % degradation of MB dye. Moreover, in synergistic photo-piezocatalysis degradation of ∼88 % was observed. Phytotoxicity was also assessed using the germination index (GI) showing ∼76 %, using heat treated sample.

Green and Reflux method synthesis of CeO2/rGO for their characterization and Photodegradation of dye

In this study, cerium oxide (CeO2) was synthesized using a green and eco-friendly solution combustion method with lemongrass as the fuel source. The synthesis process was simple and environmentally friendly, leveraging a straightforward reflux technique to prepare the CeO2/rGO composite. The resulting CeO2 and CeO2/rGO composite was characterized using various analytical techniques, including XRD, FE-SEM, FTIR, EDX, UV-Vis, XPS, and BET analysis. The photocatalytic performance of the CeO2/rGO composite was evaluated through the degradation of Methyl Violet (MV) dye, demonstrating a remarkable photocatalytic efficiency with approximately 99 % degradation following a first-order reaction kinetics. The half-life period (t₁/₂) of the degradation process was determined to be 19.01 minutes, and the rate constant (k) was calculated to be 0.03971 min⁻¹. The study also explored various factors affecting the photocatalytic activity, including pH levels, dye concentration, light source, and the amount of catalyst used. Additionally, scavenger studies were performed to identify the reactive species involved, and the total organic carbon (TOC) removal efficiency was evaluated. The reusability of the CeO2/rGO catalyst was also investigated, demonstrating its potential for sustainable and effective application in environmental remediation processes.

High removal of methylene blue and methyl violet dyes from aqueous solutions using efficient biomaterial byproduct

Dyes are among the toxic contaminants that significantly impact water ecosystems. A biomaterial prepared from Zizyphus Spina-Christi seed (ZSCS) to remove methylene blue (MB) and methyl violet (MV) from an aqueous solution was investigated. Several techniques have been used, including FTIR, SEM, EDX, XPS, and TGA, to characterize the physical and chemical properties of ZSCS. The effect of various parameters such as pH, adsorbent dosage, contact time, temperature, and initial dye concentration on the adsorption process were studied. The ZSCS adsorbent showed efficient MB and MV dye adsorption with Langmuir adsorption capacity of 666.66 and 476.19 mg/g, respectively, at experimental condition [(pH = 6; time = 30 min; T = 45 °C, dye concentration: 500 mg/L, and adsorbent dose = 0.6 g/L for MB and 1 g/L for MV dye)]. Kinetic and isotherm models were applied to fit the experimental outcomes. The result showed that ZSCS showed an ultrafast absorption process with a high removal efficiency of MB and MV within 5 min indicating its effective adsorption properties. The Langmuir isotherm model was the most suitable model for describing the adsorption of MB and MV dyes on ZSCS. The pseudo-second-order model kinetic fits better to MB and MV adsorption onto ZSCS than other models, suggesting that the adsorption mechanism followed chemisorption. Our results could offer an efficient cost-effective approach for dye removal from wastewater.

Ultraviolet Grafting of Bismuth Oxide Enhances the Photocatalytic Performance of PVDF Membrane and Improves the Problem of Membrane Fouling.

Photocatalytic membranes are crucial in addressing membrane fouling issues. However, the grafting amount of the catalyst on the membrane often becomes a key factor in restricting the membrane's self-cleaning capability. To address the challenge, this manuscript proposes a method for solving membrane fouling, featuring high grafting rates of bismuth oxide (Bi2O3) and acrylic acid (AA), significant contaminant degradation capability, and reusability. A highly photocatalytic self-cleaning microfiltration membrane made of polyvinylidene fluoride bismuth oxide and acrylic acid (PVDF-g-BA) was prepared by attaching nano Bi2O3 and acrylic acid onto the polyvinylidene fluoride membrane through adsorption/deposition and UV grafting polymerization. Compared with pure membranes and pure acrylic grafted membranes (PVDF-g-AA), the modified membrane grafted with 0.5% bismuth oxide not only improves the grafting rate and filtration performance, but also has higher self-cleaning ability. Furthermore, the degradation effect of this membrane on the organic dye methyl violet 2B under visible light irradiation is very significant, with a degradation rate reaching 90% and almost complete degradation after 12 h. Finally, after repeated filtration and photocatalysis, the membrane can still significantly degrade contaminants and can be reused.

Study of Different Parameters on Removal of Methyl Violet Dye Using Coconut Shell Powder as an Adsorbent

The dyeing business is one of the most water- intensive industries. The effluent from the dyeing industry comprises a variety of chemicals and coloring compounds, and it must be properly treated before being dumped into any water body. However, dye house effluents are extremely difficult to treat properly because to their considerable variability in composition. In most cases, a combination of multiple techniques of treatment is required to eliminate all toxins from the wastewater. As a result, adsorption became one of the most efficient ways for removing color from textile effluent. In this paper, an attempt is made to remove the colored ingredient Methyl Violet present in the colored solution by using a cheaply available adsorbent, coconut shell powder of specific size. In this work, the effect of variation in the parameters like dosage of adsorbent, temperature of the solution and initial concentration of the solution are studied and the adsorption removal efficiency is studied through an experimental approach. The adsorbent used is dry coconut shell of size -100 BSS mesh number. The dosage of adsorbent was varied from 10 gms to 50 gms and It was discovered that the adsorption removal efficiency was varying between 72.9 % to 89.6 %. The Additional factors that were examined are effect of temperature on adsorption and effect of initial concentration. The temperatures varying from 500C to 700C. It was determined that the adsorption removal effectiveness of Methyl Violet was found out to be decreasing from 64.6 % at 500C to 47.9 % at 700C. Adsorption efficiency was shown to decrease as temperature increased. The initial adsorbent concentration ranged from 30 to 70 ppm. It was shown that increasing the starting concentration enhanced the adsorption removal effectiveness from 85% to 88%. Based on the results of the preceding experiments, it is possible to infer that coconut shell powder is an efficient adsorbent for removing Methyl Violet from waste water, with an 89.6% removal rate.

Photocatalytic degradation of methyl orange and methyl violet dyes by UV/Cu2+/PDS process

ABSTRACT This research is focused on the application of the UV/Cu2+/peroxydisulfate (PDS) system for the successful decolorization of methyl orange (MO) and methyl violet (MV) dyes in aqueous media. The effects of different parameters such as the equilibrium time, initial catalyst amount, PDS concentration and pH of the media in terms of MO and MV degradation were studied. Furthermore, the photocatalytic performance of the UV/Cu2+/PDS system was also investigated by performing the degradation of MO and MV in different water systems including distilled water, synthetic wastewater and industrial wastewater samples. The results revealed 94 and 89% degradation for MO and MV dyes in the UV/Cu2+/PDS system, respectively. The radical quenching experiments showed sulfate radicals (SO4·-) as the prominent species involved in the degradation of MO and MV dyes. Overall, it was concluded that the UV/Cu2+/PDS process has the ability to be adopted for the effective elimination of contaminants from the aquatic system.

Illuminating the Power of V2O5 Nanoparticles: Efficient Photocatalytic Degradation of Organic Dyes under Visible Light.

This research explores the synthesis, characterization, and application of Vanadium Pentoxide nanoparticles (V2O5 NPs), focusing on their efficacy in the photocatalytic degradation of organic dyes under visible light. Utilizing a co-precipitation method, we synthesized V2O5 NPs characterized by an orthorhombic crystal structure with a consistent average particle size of 28nm. The optical properties of V2O5 NPs, including their band gap, were thoroughly investigated to understand their light absorption capabilities, which are crucial for photocatalytic activity. In our study, Methyl Violet (MV) dye was employed as a model organic pollutant to assess the photocatalytic performance of the nanoparticles. Under visible light irradiation, the V2O5 nanoparticles demonstrated an exceptional photocatalytic degradation efficiency, achieving up to 85% degradation of the MV dye within 100min. This high level of efficiency is attributed to the nanoparticles' ability to effectively absorb visible light and generate electron-hole pairs, thereby facilitating a robust degradation process. Further analysis revealed that the photocatalytic activity led to the generation of reactive oxygen species (ROS) such as superoxide and hydroxyl radicals, which are integral to the dye degradation mechanism. These ROS play a critical role in breaking down the dye molecules, significantly contributing to the overall effectiveness of the photocatalytic process. The results of this study highlight the potential of V2O5 nanoparticles as a sustainable and effective photocatalytic material for environmental remediation applications, particularly in the treatment of wastewater containing organic dyes. This research not only advances our understanding of the photocatalytic properties of V2O5 nanoparticles but also demonstrates their practical application in addressing environmental pollution through innovative and efficient degradation of hazardous substances.

A smart L‐alanine modified Cd‐NDI metal‐organic framework crystalline material: Photochromic properties and photocatalytic degradation dye applications

1, 4, 5, 8‐naphthalene diimide (NDI)‐based MOFs, due to their tunable structures and properties, have shown promising applications in photochromism, photocatalysis, electrocatalysis, photothermal therapy, etc. Herein, using an L‐alanine modified NDI ligand, i.e. N, N′‐bis(L‐alanine)naphthalenediimide (AlaNDI), a novel Cd‐NDI Cd (AlaNDI)(H2O)]·DMF·H2O (complex 1) was constructed under solvothermal conditions, which has an obvious different structure with the previously reported ones. Structural analysis shows that the packing structure of complex 1 consists of two adjacent Cd atoms sharing two AlaNDI ligands, forming a dimetallic building block [Cd2O8]. Each building block connects a total of four AlaNDI ligands, where two Cd atoms are bridged by two ligands. The building blocks are interconnected by ligands to form a two‐dimensional layered structure. Based on the features of the NDI skeleton, it was found that complex 1 possesses multiple stimulus responses involving sensitivity to light: a reversible photochromism property and good photocatalytic degradation activity against various dyes, especially against cationic dyes crystal violet (CV), methyl violet (MV), and Janus green B (JGB). In addition, the stimulus‐response mechanism was investigated by control experiments. It is revealed that the photocatalytic active species may be related to h+ and •OH.

WITHDRAWN: High crystallinity nano-biochar synthesized from lotus leaf wastes for uptake of dye molecules from synthetic and real wastewater

This article investigates the potential of lotus leaves-derived nano-biochar in eliminating methyl violet (MV) dye from synthetic and real textile wastewater. The surface of nano-biochar was characterized by TEM, BET, FTIR, XRD, DLS, and FESEM analyses. The BET surface area of nano-biochar was 456.3 m2.g-1, demonstrating an excellent specific surface area. The highest biosorption efficiency and maximum biosorption capacity of MV were 96.3% and 526.3mg/g, respectively, which were obtained at pH 10, equilibrium time of 200min, adsorbent concentration of 0.5g/L, MV ion concentration of 150 ppm, and temperature of 50oC. Also, the mechanism of the biosorpiton process shows that the process is endothermic. Based on R2 and RSME error values, the biosorpion process followed the pseudo-first-order and Langmuir models, indicating that monolayer biosorption of MV molecules on the biochar surface is dominant. Besides, nano-biochar was successfully reused in three steps with high efficiency. The impact of interference ions such as methylene blue, methyl orange, crystal violet, and brilliant blue on MV sorption was investigated and the outcomes revealed that nano-biochar has a remarkable ability to simultaneously eliminate these dye molecules. Additionally, nano-biochar could eliminate COD, BOD5, turbidity, TDS, and EC from a real textile wastewater with high efficiency. Overall, biochar nano-powder, owing to its high reusability, high sorption capacity, easy synthesis, and low-cost, can be considered an ideal option for industrial application.

Cellulose acetate, a source from discarded cigarette butts for the development of mixed matrix loose nanofiltration membranes for selective separation

This study presents an environmentally friendly method for extracting cellulose acetate (CA) from discarded cigarette filters, which is then utilized in the fabrication of cellulose-based membranes designed for high flux and rejection rates. CA membranes are likeable to separate dyes and ions, but their separation efficiency is exposed when the contaminant concentration is very low. So, we have integrated graphene oxide (GO) and carboxylated titanium dioxide (COOH-TiO2) in CA to develop mixed matrix membranes (MMMs) and studied them against dyes and most used salts. The CA has been extracted from these butts and added GO and COOH-TiO2 nanoparticles to develop MMMs. The present work administers the effective separation of five dyes (methyl orange, methyl violet, methylene blue, cresol red, and malachite green) and salts (NaCl and Na2SO4) along with the high efficiency of water flux by prepared CA membranes. The prepared membranes rejected up to 94.94 % methyl violet, 91.28 % methyl orange, 88.28 % methylene blue, 89.91 % cresol red, and 91.70 % malachite green dye. Along with the dyes, the membranes showed ∼40.40 % and ∼ 42.97 % rejection of NaCl and Na2SO4 salts, respectively. Additionally, these membranes have tensile strength up to 1.54 MPa. Various characterization techniques were performed on all prepared CA membranes to comprehend their behaviour. The antibacterial activity of MMMs was investigated using the Muller-Hinton-Disk diffusion method against the gram-positive bacterium Staphylococcus aureus (S. aureus) and the gram-negative bacterium Escherichia coli (E. coli). We believe the present work is an approach to utilizing waste materials into valuable products for environmental care.

Determination of glycyrrhizic acid as sweeteners by dual-wavelength overlapping resonance Rayleigh scattering

This study used cationic dyes methyl violet (MV) and neutral red (NR) as probes, based on dual-wavelength overlapping resonance Rayleigh scattering (RRS), and designed two highly sensitive methods for the determination of the natural sweetener glycyrrhizic acid (GZA). In the Clark-Lubs buffer solution, when only MV or NR was present in the solution, they formed supramolecular polymers through hydrogen bonding. When adding GZA at different concentrations, the formation of ionic association complexes led to a subsequent decrease in RRS intensity at two wavelengths in the MV − GZA system and NR − GZA system, and the amount of the decline was proportional to the GZA concentration. The linear ranges were determined as 0.1 − 0.6 mg/L and 0.1 − 0.7 mg/L, with correlation coefficients of 0.9972 and 0.9996, and limits of detection were 0.052 mg/L and 0.016 mg/L, respectively. For this study, reaction conditions were optimized, potential interfering substances were investigated, and the mechanisms behind RRS generation and intensity decrease were discussed. The proposed methods were sensitive, fast, time-saving and efficient, and have been successfully applied to licorice and dried ginger decoction analysis, yielding satisfactory results.

Study on Preparation of Calcium-Based Modified Coal Gangue and Its Adsorption Dye Characteristics.

Efficient and thorough treatment of dye wastewater is essential to achieve ecological harmony. In this study, a new type of calcium-based modified coal gangue (Ca-CG) was prepared by using solid waste coal gangue as raw material and a CaCl2 modifier, which was used for the removal of malachite green, methylene blue, crystal violet, methyl violet and other dyes in water. When the dosage of Ca-CG was 1-5 g/L, the dosage of Ca-CG was the main factor affecting the dye adsorption effect. The adsorption effects of Ca-CG on four dyes were as follows: malachite green > crystal violet > methylene blue > methyl violet. Kinetics, isotherms and thermodynamic analysis showed that the adsorption of malachite green, methyl blue, crystal violet and methyl violet by Ca-CG fitted the second-order kinetic model, and adsorption with chemical reaction is the main process. The adsorption of four dyes by Ca-CG conformed to the Freundlich model, which is dominated by multi-molecular layer adsorption, and the adsorption was easy to carry out. The adsorption process of Ca-CG on the four dyes was spontaneous. The results of FTIR, XRD and SEM showed that the calcium-based materials such as lipscombite and dolomite were the key to the adsorption of malachite green by Ca-CG, and the main mechanisms for the adsorption of malachite green by Ca-CG are surface precipitation, electrostatic action, and chelation reaction. Ca-CG adsorption has great potential for the removal of dye wastewater.

Synthesis of 3-D co(II)-oxonate colorimetric probe for selective detection of isopropanol, Co2+, and MnO4 –

A coordination polymer (CP) based on Co(II), {[Co(Ox)(H2O)3] · 2H2O} n (KA@CP2_ARS), has been synthesized using 1,3,5-tris[(1H-imidazol-1-yl)methyl]benzene (Timb) and potassium oxonate (OxK) at room temperature which was examined by single-crystal X-ray diffraction. KA@CP2_ARS contains a one-dimensional (1-D) helical chain that is extended through hydrogen-bonding interactions to form two-dimensional (2-D) and three-dimensional (3-D) supramolecular networks. KA@CP2_ARS demonstrates highly selective luminescent performance for IPA, Co2+, MnO4 –, and uric acid with detection limits of 0.214, 0.16, 0.076, and 0.65 ppm, respectively, among the screened analytes. KA@CP2_ARS displays strong photocatalytic activities for degrading 88.6% of methyl violet dye under ultraviolet irradiation.

Photocatalytic Degradation and Anticancer Activity of Green Synthesized Molybdenum Nanoparticles for Inhibiting the Cervical Cancer Cells

This work reports the synthesis of molybdenum nanoparticles (Mo NPs) through green routes using horse gram seed extracts and characterized by GC-MS, electronic (UV-visible) spectroscopy, IR, XRD and SEM techniques. Their potent applications as in vitro anticancer agent against HeLa cell lines and photocatalytic degradation of methyl orange (MO) and methyl violet (MV) dyes were also evaluated. The anti-malignant properties of Schiff base ligands [2-fluorobenzaldehyde semicarbazone (L1H) and 2-fluorobenzaldehyde thiosemicarbazone (L2H) with molybdenum metal precursor [dioxobis(2,4-pentanedionato)molybdenum] were also explored and their Mo complexes after conversion into nano form as both ligands, L1H and L2H approve their binding property based on molecular docking studies.

Pyrolyzed coal base high surface area and mesoporous activated carbon for methyl violet 2B dye removal: Optimization of preparation conditions and adsorption key parameters

Herein, a low-grade Malaysian coal namely Merit Karpit coal (MRTKC) was transformed into high surface area mesoporous activated carbon (MRTKC-AC) via pyrolysis-assisted ZnCl2 activation. A numerical optimization approach rooted in the Box-Behnken design (BBD) was employed to determine the best operational conditions such as A: dosage of MRTKC-AC (ranging from 0.02 to 0.1 g/100 mL), B: the pH of the solution (varying from 4 to 10), and C: the contact time (ranging from 5 to 25 min). A notable surface area of 1229.1 m2/g and a distinctive mesoporous structure with an average pore diameter of 2.9 nm was achieved at optimum impregnation ratio (1 MRTKC: 2 ZnCl2), heating temperature 500 °C, and residence time 60 min. Moreover, the application of MRTKC-AC was evaluated through the removal of methyl violet (MV) from the aqueous environment. The comprehensive equilibrium and kinetic adsorption analyses showed that the adsorption of MV by MRTKC-AC matched closely to the Langmuir isotherm model, while the kinetic behavior was suitably described by the pseudo-second order model. Thus, the maximum adsorption capacity (qmax) for MV dye onto MRTKC-AC was ascertained to be a substantial 238.6 mg/g. The MV dye adsorption mechanism onto MRTKC-AC surface indicates various dye–adsorbent interactions: electrostatic attraction, p–p interaction, and H-bonding. This work shows that Malaysian low-rank coal is an economical precursor for producing low-cost and efficient mesoporous activated carbon with substantive surface area.